S
M
T
W
T
F
S
30
71°
50°
31
72°
53°
1
70°
59°
2
69°
59°
3
69°
58°
4
68°
56°
5
68°
53°
6
70°
51°
7
69°
50°
8
70°
51°
9
69°
50°
10
73°
49°
11
71°
53°
12
65°
49°
13
Hist. Avg.
71°
52°
14
Hist. Avg.
70°
52°
15
Hist. Avg.
70°
52°
16
Hist. Avg.
70°
52°
17
Hist. Avg.
69°
51°
18
Hist. Avg.
69°
51°
19
Hist. Avg.
69°
51°
20
Hist. Avg.
68°
51°
21
Hist. Avg.
68°
51°
22
Hist. Avg.
68°
50°
23
Hist. Avg.
67°
50°
24
Hist. Avg.
67°
50°
25
Hist. Avg.
66°
50°
26
Hist. Avg.
66°
50°
27
Hist. Avg.
66°
50°
28
Hist. Avg.
65°
49°
29
Hist. Avg.
65°
49°
30
Hist. Avg.
64°
49°
1
Hist. Avg.
64°
49°
2
Hist. Avg.
64°
49°
3
Hist. Avg.
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Olalla
Olalla's September 2026 forecast shows daily high temperatures ranging from 65° to 73°, with overnight lows between 49° and 59°. The average high for September is 70° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Olalla. See also: October | November | December.
